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   <h1 id="index">Index &ndash; U</h1>

<table style="width: 100%" class="indextable"><tr>
  <td style="width: 33%" valign="top"><dl>
    <dt><a href="library/re.html#re.U">U (in module re)</a></dt>
    <dt><a href="library/audioop.html#index-0">u-LAW</a>, <a href="library/aifc.html#index-1">[1]</a>, <a href="library/sunaudio.html#index-0">[2]</a>, <a href="library/sndhdr.html#index-0">[3]</a></dt>
    <dt><a href="library/unicodedata.html#unicodedata.ucd_3_2_0">ucd_3_2_0 (in module unicodedata)</a></dt>
    <dt><a href="library/select.html#select.kevent.udata">udata (select.kevent attribute)</a></dt>
    <dt><a href="library/stat.html#stat.UF_APPEND">UF_APPEND (in module stat)</a></dt>
    <dt><a href="library/stat.html#stat.UF_COMPRESSED">UF_COMPRESSED (in module stat)</a></dt>
    <dt><a href="library/stat.html#stat.UF_HIDDEN">UF_HIDDEN (in module stat)</a></dt>
    <dt><a href="library/stat.html#stat.UF_IMMUTABLE">UF_IMMUTABLE (in module stat)</a></dt>
    <dt><a href="library/stat.html#stat.UF_NODUMP">UF_NODUMP (in module stat)</a></dt>
    <dt><a href="library/stat.html#stat.UF_NOUNLINK">UF_NOUNLINK (in module stat)</a></dt>
    <dt><a href="library/stat.html#stat.UF_OPAQUE">UF_OPAQUE (in module stat)</a></dt>
    <dt><a href="library/gettext.html#gettext.GNUTranslations.ugettext">ugettext() (gettext.GNUTranslations method)</a></dt>
    <dd><dl>
      <dt><a href="library/gettext.html#gettext.NullTranslations.ugettext">(gettext.NullTranslations method)</a></dt>
  </dl></dd>
    <dt><a href="library/tarfile.html#tarfile.TarInfo.uid">uid (tarfile.TarInfo attribute)</a></dt>
    <dt><a href="library/imaplib.html#imaplib.IMAP4.uid">uid() (imaplib.IMAP4 method)</a></dt>
    <dt><a href="library/poplib.html#poplib.POP3.uidl">uidl() (poplib.POP3 method)</a></dt>
    <dt><a href="library/audioop.html#audioop.ulaw2lin">ulaw2lin() (in module audioop)</a></dt>
    <dt><a href="c-api/long.html#index-4">ULONG_MAX</a></dt>
    <dt><a href="library/os.html#os.umask">umask() (in module os)</a></dt>
    <dt><a href="library/tarfile.html#tarfile.TarInfo.uname">uname (tarfile.TarInfo attribute)</a></dt>
    <dt><a href="library/os.html#os.uname">uname() (in module os)</a></dt>
    <dd><dl>
      <dt><a href="library/platform.html#platform.uname">(in module platform)</a></dt>
  </dl></dd>
    <dt>unary</dt>
    <dd><dl>
      <dt><a href="reference/expressions.html#index-47">arithmetic operation</a></dt>
      <dt><a href="reference/expressions.html#index-47">bitwise operation</a></dt>
  </dl></dd>
    <dt><a href="library/dis.html#opcode-UNARY_CONVERT">UNARY_CONVERT (opcode)</a></dt>
    <dt><a href="library/dis.html#opcode-UNARY_INVERT">UNARY_INVERT (opcode)</a></dt>
    <dt><a href="library/dis.html#opcode-UNARY_NEGATIVE">UNARY_NEGATIVE (opcode)</a></dt>
    <dt><a href="library/dis.html#opcode-UNARY_NOT">UNARY_NOT (opcode)</a></dt>
    <dt><a href="library/dis.html#opcode-UNARY_POSITIVE">UNARY_POSITIVE (opcode)</a></dt>
    <dt>unbinding</dt>
    <dd><dl>
      <dt><a href="reference/simple_stmts.html#index-19">name</a></dt>
  </dl></dd>
    <dt><a href="reference/executionmodel.html#index-8">UnboundLocalError</a>, <a href="library/exceptions.html#exceptions.UnboundLocalError">[1]</a></dt>
    <dt><a href="library/types.html#types.UnboundMethodType">UnboundMethodType (in module types)</a></dt>
    <dt><a href="library/functions.html#index-4">unbuffered I/O</a></dt>
    <dt>UNC paths</dt>
    <dd><dl>
      <dt><a href="library/os.html#index-14">and os.makedirs()</a></dt>
  </dl></dd>
    <dt><a href="library/zlib.html#zlib.Decompress.unconsumed_tail">unconsumed_tail (zlib.Decompress attribute)</a></dt>
    <dt><a href="library/curses.html#curses.unctrl">unctrl() (in module curses)</a></dt>
    <dd><dl>
      <dt><a href="library/curses.ascii.html#curses.ascii.unctrl">(in module curses.ascii)</a></dt>
  </dl></dd>
    <dt><a href="distutils/apiref.html#distutils.ccompiler.CCompiler.undefine_macro">undefine_macro() (distutils.ccompiler.CCompiler method)</a></dt>
    <dt><a href="library/decimal.html#decimal.Underflow">Underflow (class in decimal)</a></dt>
    <dt><a href="library/turtle.html#turtle.undo">undo() (in module turtle)</a></dt>
    <dt><a href="library/turtle.html#turtle.undobufferentries">undobufferentries() (in module turtle)</a></dt>
    <dt><a href="library/cmd.html#cmd.Cmd.undoc_header">undoc_header (cmd.Cmd attribute)</a></dt>
    <dt><a href="library/xml.sax.utils.html#xml.sax.saxutils.unescape">unescape() (in module xml.sax.saxutils)</a></dt>
    <dt><a href="library/doctest.html#doctest.UnexpectedException">UnexpectedException</a></dt>
    <dt><a href="library/unittest.html#unittest.TestResult.unexpectedSuccesses">unexpectedSuccesses (unittest.TestResult attribute)</a></dt>
    <dt><a href="library/fl.html#fl.form.unfreeze_form">unfreeze_form() (fl.form method)</a></dt>
    <dt><a href="library/curses.html#curses.ungetch">ungetch() (in module curses)</a></dt>
    <dd><dl>
      <dt><a href="library/msvcrt.html#msvcrt.ungetch">(in module msvcrt)</a></dt>
  </dl></dd>
    <dt><a href="library/curses.html#curses.ungetmouse">ungetmouse() (in module curses)</a></dt>
    <dt><a href="library/gettext.html#gettext.GNUTranslations.ungettext">ungettext() (gettext.GNUTranslations method)</a></dt>
    <dd><dl>
      <dt><a href="library/gettext.html#gettext.NullTranslations.ungettext">(gettext.NullTranslations method)</a></dt>
  </dl></dd>
    <dt><a href="library/msvcrt.html#msvcrt.ungetwch">ungetwch() (in module msvcrt)</a></dt>
    <dt><a href="library/binascii.html#binascii.unhexlify">unhexlify() (in module binascii)</a></dt>
    <dt>unichr</dt>
    <dd><dl>
      <dt><a href="reference/datamodel.html#index-23">built-in function</a></dt>
  </dl></dd>
    <dt><a href="library/functions.html#unichr">unichr() (built-in function)</a></dt>
    <dt><a href="library/unicodedata.html#index-0">Unicode</a>, <a href="reference/datamodel.html#index-23">[1]</a>, <a href="library/codecs.html#index-0">[2]</a></dt>
    <dd><dl>
      <dt><a href="library/unicodedata.html#index-0">database</a></dt>
      <dt><a href="library/stdtypes.html#index-21">object</a></dt>
  </dl></dd>
    <dt>unicode</dt>
    <dd><dl>
      <dt><a href="reference/datamodel.html#index-23">built-in function</a>, <a href="reference/datamodel.html#index-83">[1]</a>, <a href="c-api/object.html#index-5">[2]</a>, <a href="tutorial/introduction.html#index-0">[3]</a></dt>
      <dt><a href="reference/datamodel.html#index-23">object</a></dt>
  </dl></dd>
    <dt><a href="library/2to3.html#2to3fixer-unicode">unicode (2to3 fixer)</a></dt>
    <dt><a href="library/re.html#re.UNICODE">UNICODE (in module re)</a></dt>
    <dt><a href="reference/lexical_analysis.html#index-14">Unicode Consortium</a></dt>
    <dt><a href="library/functions.html#unicode">unicode() (built-in function)</a></dt>
    <dt><a href="library/unicodedata.html#module-unicodedata">unicodedata (module)</a></dt>
    <dt><a href="library/exceptions.html#exceptions.UnicodeDecodeError">UnicodeDecodeError</a></dt>
    <dt><a href="library/exceptions.html#exceptions.UnicodeEncodeError">UnicodeEncodeError</a></dt>
    <dt><a href="library/exceptions.html#exceptions.UnicodeError">UnicodeError</a></dt>
    <dt><a href="library/exceptions.html#exceptions.UnicodeTranslateError">UnicodeTranslateError</a></dt>
    <dt><a href="library/types.html#types.UnicodeType">UnicodeType (in module types)</a></dt>
    <dt><a href="library/exceptions.html#exceptions.UnicodeWarning">UnicodeWarning</a></dt>
    <dt><a href="library/unicodedata.html#unicodedata.unidata_version">unidata_version (in module unicodedata)</a></dt>
    <dt><a href="library/difflib.html#difflib.unified_diff">unified_diff() (in module difflib)</a></dt>
    <dt><a href="library/random.html#random.uniform">uniform() (in module random)</a></dt>
    <dt><a href="library/httplib.html#httplib.UnimplementedFileMode">UnimplementedFileMode</a></dt>
    <dt><a href="library/imputil.html#imputil.ImportManager.uninstall">uninstall() (imputil.ImportManager method)</a></dt>
    <dt><a href="library/ctypes.html#ctypes.Union">Union (class in ctypes)</a></dt>
    <dt><a href="library/stdtypes.html#set.union">union() (set method)</a></dt>
    <dt><a href="library/unittest.html#module-unittest">unittest (module)</a></dt>
    <dt>unittest command line option</dt>
    <dd><dl>
      <dt><a href="library/unittest.html#cmdoption-unittest-b">-b, --buffer</a></dt>
      <dt><a href="library/unittest.html#cmdoption-unittest-c">-c, --catch</a></dt>
      <dt><a href="library/unittest.html#cmdoption-unittest-f">-f, --failfast</a></dt>
  </dl></dd>
    <dt>unittest-discover command line option</dt>
    <dd><dl>
      <dt><a href="library/unittest.html#cmdoption-unittest-discover-p">-p, --pattern pattern</a></dt>
      <dt><a href="library/unittest.html#cmdoption-unittest-discover-s">-s, --start-directory directory</a></dt>
      <dt><a href="library/unittest.html#cmdoption-unittest-discover-t">-t, --top-level-directory directory</a></dt>
      <dt><a href="library/unittest.html#cmdoption-unittest-discover-v">-v, --verbose</a></dt>
  </dl></dd>
    <dt><a href="glossary.html#term-universal-newlines">universal newlines</a></dt>
    <dd><dl>
      <dt><a href="whatsnew/2.5.html#index-18">What&#39;s new</a>, <a href="whatsnew/2.3.html#index-8">[1]</a>, <a href="whatsnew/2.4.html#index-7">[2]</a>, <a href="whatsnew/2.6.html#index-13">[3]</a></dt>
      <dt><a href="library/bz2.html#index-0">bz2.BZ2File class</a></dt>
      <dt><a href="library/stdtypes.html#index-35">file.newlines attribute</a></dt>
      <dt><a href="library/io.html#index-2">io.IncrementalNewlineDecoder class</a></dt>
      <dt><a href="library/io.html#index-1">io.TextIOWrapper class</a></dt>
      <dt><a href="library/io.html#index-0">open() (in module io)</a></dt>
      <dt><a href="library/functions.html#index-5">open() built-in function</a></dt>
      <dt><a href="library/stdtypes.html#index-24">str.splitlines method</a></dt>
      <dt><a href="library/subprocess.html#index-1">subprocess module</a></dt>
      <dt><a href="library/zipfile.html#index-0">zipfile.ZipFile.open method</a></dt>
  </dl></dd>
    <dt><a href="reference/toplevel_components.html#index-4">UNIX</a></dt>
    <dd><dl>
      <dt><a href="library/fcntl.html#index-0">I/O control</a></dt>
      <dt><a href="library/fcntl.html#index-0">file control</a></dt>
  </dl></dd>
    <dt><a href="library/rfc822.html#rfc822.Message.unixfrom">unixfrom (rfc822.Message attribute)</a></dt>
    <dt><a href="library/mailbox.html#mailbox.UnixMailbox">UnixMailbox (class in mailbox)</a></dt>
    <dt><a href="library/aetypes.html#aetypes.Unknown">Unknown (class in aetypes)</a></dt>
    <dt><a href="library/sgmllib.html#sgmllib.SGMLParser.unknown_charref">unknown_charref() (sgmllib.SGMLParser method)</a></dt>
    <dt><a href="library/htmlparser.html#HTMLParser.HTMLParser.unknown_decl">unknown_decl() (HTMLParser.HTMLParser method)</a></dt>
    <dt><a href="library/sgmllib.html#sgmllib.SGMLParser.unknown_endtag">unknown_endtag() (sgmllib.SGMLParser method)</a></dt>
    <dt><a href="library/sgmllib.html#sgmllib.SGMLParser.unknown_entityref">unknown_entityref() (sgmllib.SGMLParser method)</a></dt>
    <dt><a href="library/urllib2.html#urllib2.BaseHandler.unknown_open">unknown_open() (urllib2.BaseHandler method)</a></dt>
    <dd><dl>
      <dt><a href="library/urllib2.html#urllib2.UnknownHandler.unknown_open">(urllib2.UnknownHandler method)</a></dt>
  </dl></dd>
    <dt><a href="library/sgmllib.html#sgmllib.SGMLParser.unknown_starttag">unknown_starttag() (sgmllib.SGMLParser method)</a></dt>
    <dt><a href="library/urllib2.html#urllib2.UnknownHandler">UnknownHandler (class in urllib2)</a></dt>
    <dt><a href="library/httplib.html#httplib.UnknownProtocol">UnknownProtocol</a></dt>
    <dt><a href="library/httplib.html#httplib.UnknownTransferEncoding">UnknownTransferEncoding</a></dt>
    <dt><a href="library/os.html#os.unlink">unlink() (in module os)</a></dt>
    <dd><dl>
      <dt><a href="library/xml.dom.minidom.html#xml.dom.minidom.Node.unlink">(xml.dom.minidom.Node method)</a></dt>
  </dl></dd>
    <dt><a href="library/mailbox.html#mailbox.Babyl.unlock">unlock() (mailbox.Babyl method)</a></dt>
    <dd><dl>
      <dt><a href="library/mailbox.html#mailbox.MH.unlock">(mailbox.MH method)</a></dt>
      <dt><a href="library/mailbox.html#mailbox.MMDF.unlock">(mailbox.MMDF method)</a></dt>
      <dt><a href="library/mailbox.html#mailbox.Mailbox.unlock">(mailbox.Mailbox method)</a></dt>
      <dt><a href="library/mailbox.html#mailbox.Maildir.unlock">(mailbox.Maildir method)</a></dt>
      <dt><a href="library/mailbox.html#mailbox.mbox.unlock">(mailbox.mbox method)</a></dt>
      <dt><a href="library/mutex.html#mutex.mutex.unlock">(mutex.mutex method)</a></dt>
  </dl></dd>
    <dt><a href="library/mimify.html#mimify.unmimify">unmimify() (in module mimify)</a></dt>
    <dt><a href="library/aepack.html#aepack.unpack">unpack() (in module aepack)</a></dt>
    <dd><dl>
      <dt><a href="library/struct.html#struct.unpack">(in module struct)</a></dt>
      <dt><a href="library/struct.html#struct.Struct.unpack">(struct.Struct method)</a></dt>
  </dl></dd>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_array">unpack_array() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_bytes">unpack_bytes() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_double">unpack_double() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_farray">unpack_farray() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_float">unpack_float() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_fopaque">unpack_fopaque() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/struct.html#struct.unpack_from">unpack_from() (in module struct)</a></dt>
    <dd><dl>
      <dt><a href="library/struct.html#struct.Struct.unpack_from">(struct.Struct method)</a></dt>
  </dl></dd>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_fstring">unpack_fstring() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_list">unpack_list() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_opaque">unpack_opaque() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/dis.html#opcode-UNPACK_SEQUENCE">UNPACK_SEQUENCE (opcode)</a></dt>
</dl></td>
  <td style="width: 33%" valign="top"><dl>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker.unpack_string">unpack_string() (xdrlib.Unpacker method)</a></dt>
    <dt><a href="library/xdrlib.html#xdrlib.Unpacker">Unpacker (class in xdrlib)</a></dt>
    <dt><a href="library/aetools.html#aetools.unpackevent">unpackevent() (in module aetools)</a></dt>
    <dt><a href="library/xml.sax.handler.html#xml.sax.handler.DTDHandler.unparsedEntityDecl">unparsedEntityDecl() (xml.sax.handler.DTDHandler method)</a></dt>
    <dt><a href="library/pyexpat.html#xml.parsers.expat.xmlparser.UnparsedEntityDeclHandler">UnparsedEntityDeclHandler() (xml.parsers.expat.xmlparser method)</a></dt>
    <dt><a href="library/pickle.html#pickle.Unpickler">Unpickler (class in pickle)</a></dt>
    <dt><a href="library/pickle.html#pickle.UnpicklingError">UnpicklingError</a></dt>
    <dt><a href="library/fl.html#fl.unqdevice">unqdevice() (in module fl)</a></dt>
    <dt><a href="library/email.util.html#email.utils.unquote">unquote() (in module email.utils)</a></dt>
    <dd><dl>
      <dt><a href="library/rfc822.html#rfc822.unquote">(in module rfc822)</a></dt>
      <dt><a href="library/urllib.html#urllib.unquote">(in module urllib)</a></dt>
  </dl></dd>
    <dt><a href="library/urllib.html#urllib.unquote_plus">unquote_plus() (in module urllib)</a></dt>
    <dt><a href="reference/datamodel.html#index-2">unreachable object</a></dt>
    <dt><a href="distutils/apiref.html#distutils.text_file.TextFile.unreadline">unreadline() (distutils.text_file.TextFile method)</a></dt>
    <dt><a href="reference/lexical_analysis.html#index-17">unrecognized escape sequence</a></dt>
    <dt><a href="library/select.html#select.epoll.unregister">unregister() (select.epoll method)</a></dt>
    <dd><dl>
      <dt><a href="library/select.html#select.poll.unregister">(select.poll method)</a></dt>
  </dl></dd>
    <dt><a href="library/shutil.html#shutil.unregister_archive_format">unregister_archive_format() (in module shutil)</a></dt>
    <dt><a href="library/csv.html#csv.unregister_dialect">unregister_dialect() (in module csv)</a></dt>
    <dt><a href="library/test.html#test.test_support.EnvironmentVarGuard.unset">unset() (test.test_support.EnvironmentVarGuard method)</a></dt>
    <dt><a href="library/os.html#os.unsetenv">unsetenv() (in module os)</a></dt>
    <dt><a href="library/imaplib.html#imaplib.IMAP4.unsubscribe">unsubscribe() (imaplib.IMAP4 method)</a></dt>
    <dt><a href="library/io.html#io.UnsupportedOperation">UnsupportedOperation</a></dt>
    <dt><a href="library/tokenize.html#tokenize.untokenize">untokenize() (in module tokenize)</a></dt>
    <dt><a href="library/curses.html#curses.window.untouchwin">untouchwin() (curses.window method)</a></dt>
    <dt><a href="library/zlib.html#zlib.Decompress.unused_data">unused_data (zlib.Decompress attribute)</a></dt>
    <dt><a href="library/ssl.html#ssl.SSLSocket.unwrap">unwrap() (ssl.SSLSocket method)</a></dt>
    <dt><a href="library/turtle.html#turtle.up">up() (in module turtle)</a></dt>
    <dt><a href="library/collections.html#collections.Counter.update">update() (collections.Counter method)</a></dt>
    <dd><dl>
      <dt><a href="library/stdtypes.html#dict.update">(dict method)</a></dt>
      <dt><a href="library/hashlib.html#hashlib.hash.update">(hashlib.hash method)</a></dt>
      <dt><a href="library/hmac.html#hmac.HMAC.update">(hmac.HMAC method)</a></dt>
      <dt><a href="library/turtle.html#turtle.update">(in module turtle)</a></dt>
      <dt><a href="library/mailbox.html#mailbox.Mailbox.update">(mailbox.Mailbox method)</a></dt>
      <dt><a href="library/mailbox.html#mailbox.Maildir.update">(mailbox.Maildir method)</a></dt>
      <dt><a href="library/md5.html#md5.md5.update">(md5.md5 method)</a></dt>
      <dt><a href="library/stdtypes.html#set.update">(set method)</a></dt>
      <dt><a href="library/sha.html#sha.sha.update">(sha.sha method)</a></dt>
      <dt><a href="library/trace.html#trace.CoverageResults.update">(trace.CoverageResults method)</a></dt>
  </dl></dd>
    <dt><a href="library/curses.panel.html#curses.panel.update_panels">update_panels() (in module curses.panel)</a></dt>
    <dt><a href="library/mailbox.html#mailbox.BabylMessage.update_visible">update_visible() (mailbox.BabylMessage method)</a></dt>
    <dt><a href="library/functools.html#functools.update_wrapper">update_wrapper() (in module functools)</a></dt>
    <dt><a href="library/framework.html#FrameWork.ScrolledWindow.updatescrollbars">updatescrollbars() (FrameWork.ScrolledWindow method)</a></dt>
    <dt><a href="library/string.html#string.upper">upper() (in module string)</a></dt>
    <dd><dl>
      <dt><a href="library/stdtypes.html#str.upper">(str method)</a></dt>
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    <dt><a href="library/string.html#string.uppercase">uppercase (in module string)</a></dt>
    <dt><a href="library/os.html#os.urandom">urandom() (in module os)</a></dt>
    <dt><a href="library/urllib.html#index-0">URL</a>, <a href="library/urlparse.html#index-0">[1]</a>, <a href="library/robotparser.html#index-0">[2]</a>, <a href="library/cgi.html#index-0">[3]</a>, <a href="library/basehttpserver.html#index-0">[4]</a></dt>
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      <dt><a href="library/urlparse.html#index-0">parsing</a></dt>
      <dt><a href="library/urlparse.html#index-0">relative</a></dt>
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    <dt><a href="library/xmlrpclib.html#xmlrpclib.ProtocolError.url">url (xmlrpclib.ProtocolError attribute)</a></dt>
    <dt><a href="library/urllib.html#urllib.url2pathname">url2pathname() (in module urllib)</a></dt>
    <dt><a href="library/urllib.html#urllib.urlcleanup">urlcleanup() (in module urllib)</a></dt>
    <dt><a href="library/urlparse.html#urlparse.urldefrag">urldefrag() (in module urlparse)</a></dt>
    <dt><a href="library/urllib.html#urllib.urlencode">urlencode() (in module urllib)</a></dt>
    <dt><a href="library/urllib2.html#urllib2.URLError">URLError</a></dt>
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    <dt><a href="library/urllib2.html#module-urllib2">urllib2 (module)</a></dt>
    <dt><a href="library/urllib.html#urllib.urlopen">urlopen() (in module urllib)</a></dt>
    <dd><dl>
      <dt><a href="library/urllib2.html#urllib2.urlopen">(in module urllib2)</a></dt>
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    <dt><a href="library/urllib.html#urllib.urlretrieve">urlretrieve() (in module urllib)</a></dt>
    <dt><a href="library/base64.html#base64.urlsafe_b64decode">urlsafe_b64decode() (in module base64)</a></dt>
    <dt><a href="library/base64.html#base64.urlsafe_b64encode">urlsafe_b64encode() (in module base64)</a></dt>
    <dt><a href="library/urlparse.html#urlparse.urlsplit">urlsplit() (in module urlparse)</a></dt>
    <dt><a href="library/urlparse.html#urlparse.urlunparse">urlunparse() (in module urlparse)</a></dt>
    <dt><a href="library/urlparse.html#urlparse.urlunsplit">urlunsplit() (in module urlparse)</a></dt>
    <dt><a href="library/uuid.html#uuid.UUID.urn">urn (uuid.UUID attribute)</a></dt>
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      <dt><a href="library/site.html#site.USER_BASE">(in module site)</a></dt>
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    <dt><a href="library/bdb.html#bdb.Bdb.user_exception">user_exception() (bdb.Bdb method)</a></dt>
    <dt><a href="library/bdb.html#bdb.Bdb.user_line">user_line() (bdb.Bdb method)</a></dt>
    <dt><a href="library/bdb.html#bdb.Bdb.user_return">user_return() (bdb.Bdb method)</a></dt>
    <dt><a href="library/site.html#site.USER_SITE">USER_SITE (in module site)</a></dt>
    <dt>usercustomize</dt>
    <dd><dl>
      <dt><a href="library/site.html#index-4">module</a></dt>
  </dl></dd>
    <dt><a href="library/userdict.html#UserDict.UserDict">UserDict (class in UserDict)</a></dt>
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      <dt><a href="library/userdict.html#module-UserDict">(module)</a></dt>
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    <dt><a href="library/userdict.html#UserList.UserList">UserList (class in UserList)</a></dt>
    <dd><dl>
      <dt><a href="library/userdict.html#module-UserList">(module)</a></dt>
  </dl></dd>
    <dt><a href="library/getpass.html#index-3">USERNAME</a></dt>
    <dt><a href="install/index.html#index-6">USERPROFILE</a>, <a href="library/os.path.html#index-4">[1]</a></dt>
    <dt><a href="library/curses.panel.html#curses.panel.Panel.userptr">userptr() (curses.panel.Panel method)</a></dt>
    <dt><a href="library/userdict.html#UserString.UserString">UserString (class in UserString)</a></dt>
    <dd><dl>
      <dt><a href="library/userdict.html#module-UserString">(module)</a></dt>
  </dl></dd>
    <dt><a href="library/exceptions.html#exceptions.UserWarning">UserWarning</a></dt>
    <dt><a href="library/tarfile.html#tarfile.USTAR_FORMAT">USTAR_FORMAT (in module tarfile)</a></dt>
    <dt><a href="library/time.html#index-5">UTC</a></dt>
    <dt><a href="library/datetime.html#datetime.datetime.utcfromtimestamp">utcfromtimestamp() (datetime.datetime class method)</a></dt>
    <dt><a href="library/datetime.html#datetime.datetime.utcnow">utcnow() (datetime.datetime class method)</a></dt>
    <dt><a href="library/datetime.html#datetime.datetime.utcoffset">utcoffset() (datetime.datetime method)</a></dt>
    <dd><dl>
      <dt><a href="library/datetime.html#datetime.time.utcoffset">(datetime.time method)</a></dt>
      <dt><a href="library/datetime.html#datetime.tzinfo.utcoffset">(datetime.tzinfo method)</a></dt>
  </dl></dd>
    <dt><a href="library/datetime.html#datetime.datetime.utctimetuple">utctimetuple() (datetime.datetime method)</a></dt>
    <dt><a href="library/os.html#os.utime">utime() (in module os)</a></dt>
    <dt>uu</dt>
    <dd><dl>
      <dt><a href="library/binascii.html#index-0">module</a></dt>
  </dl></dd>
    <dt><a href="library/uu.html#module-uu">uu (module)</a></dt>
    <dt><a href="library/uuid.html#uuid.UUID">UUID (class in uuid)</a></dt>
    <dt><a href="library/uuid.html#module-uuid">uuid (module)</a></dt>
    <dt><a href="library/uuid.html#index-2">uuid1</a></dt>
    <dt><a href="library/uuid.html#uuid.uuid1">uuid1() (in module uuid)</a></dt>
    <dt><a href="library/uuid.html#index-3">uuid3</a></dt>
    <dt><a href="library/uuid.html#uuid.uuid3">uuid3() (in module uuid)</a></dt>
    <dt><a href="library/uuid.html#index-4">uuid4</a></dt>
    <dt><a href="library/uuid.html#uuid.uuid4">uuid4() (in module uuid)</a></dt>
    <dt><a href="library/uuid.html#index-5">uuid5</a></dt>
    <dt><a href="library/uuid.html#uuid.uuid5">uuid5() (in module uuid)</a></dt>
    <dt><a href="library/msilib.html#msilib.UuidCreate">UuidCreate() (in module msilib)</a></dt>
</dl></td>
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